See also:

Tire inflation pressure values up to 100 mph/160 km/h
320i 328i 335i ...

The concept
The central locking system becomes active when the driver's door is closed. The system simultaneously engages and releases the locks on the following: ► Doors. ► Tailgate. ► ...

Switching off automatically
System switches off: above approx. 9 mph/ 15 km/h. Switch on the system again if necessary. ...